$109 Find Cheap Flights from Seattle to Massachusetts

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Massachusetts departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Massachusetts

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Massachusetts.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Massachusetts.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Seattle to Massachusetts

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$200
Albany
Albany1 stop$325
Boston
Bostonnonstop$200
Albany
Albany1 stop$325

Book Cheap Seattle to Massachusetts Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Massachusetts that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Massachusetts

Sat, Sep 20 - Sat, Sep 27
JetBlue Logo
11:30 am - 8:23 pmSEA-BOS
5h 53mnonstop
JetBlue Logo
7:00 am - 10:19 amBOS-SEA
6h 19mnonstop
$200JetBlue
Find Deal
Sat, Sep 13 - Sat, Sep 20
 Logo
3:59 pm - 12:27 amSEA-BOS
5h 28mnonstop
 Logo
7:20 am - 10:33 amBOS-SEA
6h 13mnonstop
Sat, Sep 20 - Sat, Sep 27
Hawaiian Airlines Logo
3:59 pm - 12:27 amSEA-BOS
5h 28mnonstop
Hawaiian Airlines Logo
6:55 pm - 10:08 pmBOS-SEA
6h 13mnonstop
$213Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Hawaiian Airlines Logo
3:59 pm - 12:27 amSEA-BOS
5h 28mnonstop
Hawaiian Airlines Logo
7:20 am - 10:33 amBOS-SEA
6h 13mnonstop
$214Hawaiian Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Delta Logo
10:05 pm - 6:35 amSEA-BOS
5h 30mnonstop
Delta Logo
6:55 pm - 10:22 pmBOS-SEA
6h 27mnonstop
$217Delta
Find Deal
Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
6:05 am - 5:04 pmSEA-BOS
7h 59m1 stop
American Airlines Logo
11:28 am - 5:29 pmBOS-SEA
9h 01m1 stop
$235American Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
10:11 am - 10:40 pmSEA-BOS
9h 29m1 stop
American Airlines Logo
8:05 am - 2:48 pmBOS-SEA
9h 43m1 stop
$236American Airlines
Find Deal
Mon, Sep 15 - Tue, Sep 23
Alaska Airlines Logo
9:40 pm - 3:00 pmSEA-BOS
14h 20m1 stop
Alaska Airlines Logo
7:45 am - 4:51 pmBOS-SEA
12h 06m1 stop
$246Alaska Airlines
Find Deal
Fri, Sep 19 - Thu, Oct 2
Delta Logo
10:05 pm - 6:35 amSEA-BOS
5h 30mnonstop
Delta Logo
7:25 am - 10:43 amBOS-SEA
6h 18mnonstop
$247Delta
Find Deal
Sun, Oct 19 - Tue, Oct 21
Alaska Airlines Logo
7:52 am - 6:41 amSEA-BOS
19h 49m1 stop
Alaska Airlines Logo
8:25 pm - 10:34 amBOS-SEA
17h 09m1 stop
$256Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Massachusetts flights

Get data-powered insights and trends into flights from Seattle to Massachusetts to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Massachusetts flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Seattle to Massachusetts.

The cheapest ticket to Massachusetts from Seattle found in the last 72 hours was to Boston, at $158 round-trip. The most popular route is from Seattle (SEA) to Boston (BOS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $158.

Can I save money by flying with a layover from Seattle to Massachusetts?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $863 on average.

What is the cheapest month to fly from Seattle to Massachusetts?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Massachusetts is January, when tickets cost $217 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $465 and $456 respectively.

What’s the cheapest day of the week to fly from Seattle to Massachusetts?

The average price of all round-trip flights from Seattle to Massachusetts clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to Massachusetts, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Massachusetts, Wednesday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Seattle to Massachusetts?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Massachusetts, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Massachusetts, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$109
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Seattle to Boston

FAQs - booking Massachusetts flights

  • How does KAYAK find such low prices on flights from Seattle to Massachusetts?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Massachusetts.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Massachusetts?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Massachusetts?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Massachusetts with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Massachusetts?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Massachusetts?

    The cheapest time of day to fly to Massachusetts is generally in the evening, when round-trip flights cost $331 on average. Morning departures are around 25% more expensive than evening flights, on average. The most expensive time of day to fly to Massachusetts is generally in the morning, which is peak travel time and where the average cost of a ticket is $413.

Top tips for finding cheap flights to Massachusetts

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Boston $187 one-way - $294 round-trip

Reviews of the top 5 airlines serving from Seattle to Massachusetts

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Massachusetts. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Massachusetts? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.1Entertainment
7.1Food
Airline reviews

Crew was very friendly. Our bags showed up at the carousel within 20 minutes of arrival.

8.0 ExcellentAnonymous, Jul 2025SEA - MSY
Read more Alaska Airlines reviews

Crew was very friendly. Our bags showed up at the carousel within 20 minutes of arrival.

Flight was delayed and hour due to tire issue. First flight of the day, this issue should have been discovered prior to boarding.

Both legs of the trip were delayed about an hour. Planes were new, liked the WiFi availability and entertainment available. Crew was very good. People were happy and helpful. Liked the pilots - they provided updates throughout the flights. Snacks were underwhelming. Drinks were good! Like the smaller sodas and they actually came through the cabin 2x which was great. In Seattle airport the construction caused much confusion for Alaska. Process of printing own tags, etc was chaotic for people who didn’t check in online prior to arrival which in turn caused issues for those who did. Plus airport gates were too small for the number of people flying.

We did have to wait an hour for the runway to be cleared but other than that it was fine.

My seat row didn’t have tray tables which made it pretty difficult to get comfortable on a four hour flight. Good experience outside of that, though.

There was no sitting place in Sea-Tac airport. Even airline didn’t provide any food or dinner. I will never take this airline in my future travel.

Crew was very rude and uncaring. When someone tried to place their bag in overhead bin and they asked for help, crew told them they could not assist. Crew member then told the customer if they couldn’t place into overhead bin on their own, they should have checked in bag. When other customer helped to place the bag in the overhead bin, they were given evil look by crew member and told to hurry back to their uncomfortable middle seat. This was despite the fact that the plane did not leave until 30 minutes later. The flight was ~80% full; when final people boarded, they were forced into middle seats with no room for comfort. There were a handful of emergency row seats unoccupied. When asked if any of the emergency row seats may be used, the crew said that they would cost extra. Normally if a flight is completely boarded and there are open seats, the crew at least gives thought to asking someone if they want to re-locate to the more comfortable seat, especially on a long flight.

I am always uncomfortable about the boarding process. I think every airlines has their own procedures for boarding but all of their procedures are inconvenient because it takes too much time to board. If you board people from back seat to front, I think you can reduce the time to boarding.

Our original fluffy was cancelled. Our substitute flight didn't fly. We lost out on our hotel and car rental. Had to fly out the next morning. Alaska didn't give us any meaningful information. The first flight was scheduled to leave at 4pm and the substitute flight at 9pm. We left the airport at midnight for a hotel. No weather. Beyond disappointed.

There was a delay, then we were boarded, then deboarded, then waited another hour for a new flight, then boarded again and arrived 2 hours later than expected while traveling with 3 young children.

Food was surprisingly good but the WiFi was not great

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

Delta is a cut above the others in customer service.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

The crew was great! It was nice to have a pillow and blanket... It gets cold on those flights. I paid extra money to sit where I thought was extra comfort seating, but it wasn't,... So, I was mad a bit about that. I'm hoping our flight home will be better.

Flight got delayed and it was very inconvenient . Had to come with another carrier. Had to spend one more night in San Francisco.

Logging into next flight was an issue as I never received a confirmation code

Alaska airlines is not what I expected Very disappointed Unfriendly Discouraging Very bad customer service, heartbroken trying to explain to them my situation.

I could not check in ahead of time. Kayak did not give me a proper confirmation number to check in.

I loved flying Hawaiian Air! We didn’t pay to sit together, but we were able to anyway. They had usb charging ports and even outlets in some seats. They served a hot sandwich that was not very good, but we were still pleasantly surprised. The staff was very nice. The seats really made my booty hurt but maybe I’m just not used to sitting so long. Also, the AC was really cold even though I was wearing pants, a hoodie, and a light blanket.

A second drink service on a 6 hour flight would have been helpful.

The steward staff was particularly friendly and helpful. They smiled a lot and seemed anxious to be sure we enjoyed the flight.

Everything was good for the price I paid. Crew was very nice.

The worst flight experience I've ever had. Our flight was delayed 14 whole hours because the flight crew never showed up. We had to wait in a two hour line to get our new boarding passes, we were told we had no other option but to fly at 10pm (we didn't depart until 11:45pm). Everyone had to contact their hotels and car rental places, workplaces, etc. since we lost an entire day's worth of travel. The crew showed up at 10:15, which was past the time we were supposed to board. They were laughing and being completely smug when they boarded, and they took another hour to board us onto our flight. The flight crew never came to check in on us, we were quickly given one drink and sandwich and they turned off the lights and were negligent the rest of the trip. My mom asked three attendants for a seat belt extender, they never brought one. I was dehydrated and never received another drink. They were very rude and unfriendly, we had been up since 4am the morning of our flight and didn't land in our destination until 2am the next day (5am local time). This was unacceptable service and treatment, these flights are not cheap and we were inconvenienced out of an entire day of travel. This was 100% avoidable and was the fault of Hawaiian Airlines, and their crews inability to show up to work on time.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.

It would have been nice if they had offered more than one set of snacks

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

Everything you need to know for your flight from Seattle to Massachusetts

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.